The ISS, the International Space Station, is no longer responding. Its crew is in perdition. At the same time, a decapitated corpse covered with wax is found on a roof in Kazakhstan. The identification is formal: it is Anthony Kurz, an American astronaut currently on mission in the ISS. Anna Zarathi, a French astronaut who has been dismissed from the space program, and Isaak Turgun, a Kazakh cop who has been disowned by his superiors, will try to solve this strange paradox…